Answer:
Hindsight bias
Explanation:
Most individuals usually seem to perceive that they have a clearer picture or better knowledge of an event after such incident or happening has occurred, prompting then to think that they had a good knowledge of the occurrence before it occurred than they actually do.
For instance, after so many incidents, eyewitnesses or other individuals usually claim they knew what happened would actually occur. Owing to the fact that the incident has actually occurred, they say their claim with much more swagger than than they usually do before the incident.
They got mad at each other and hitler killed them.
I think the answer would be A.
They are showing BEHAVIORAL symptoms of mania.
